Contents

Versions

There are several variations of the Symbian OS that are tailored for different devices. The capabilities of the Symbian OS depend on the device for which it was tailored. Each variation is called a Device Family Reference Design (DFRD).

DFRDs

Device Family Reference Designs (DFRDs) are variations of Symbian OS tailored for different types of mobile information devices including one for smart phones, one for pen-based communicators, and another for keyboard-based communicators. There are three DFRDs: Crystal, Pearl, and Quartz

Crystal

Crystal is a DFRD tailored for feature-rich, Communicator-type devices. Hardware platforms are phones with a full keyboard and a relatively large, landscape-oriented
display. Crystal devices are designed for business users who need a lot of information.

Pearl

Pearl is a DFRD for a Symbian smart phone. Hardware platforms typically look like standard cell phones with small displays and limited keyboards.

Quartz

Quartz is a DFRD for a pen-based phone similar to the Palm PDAs. Hardware platforms do not include keyboards, and the relatively large displays are portrait-oriented (vertical). Quartz devices are designed for consumer users and are geared toward information gathering.

History

Symbian is a joint venture between Nokia, Motorola, Ericsson, Matsushita, and Psion that became independent in June 1998. Symbian was established by leaders in the computing and mobile industries to enable the mass market of communicators and smart phones. Here is a brief overview of the milestones in the history of Symbian.

In 1980, Psion Software was founded by David Potter.

1990-1998 Psion releases devices using the EPOC16 OS, also known as SIBO. These devices are catagorized as Series 3.

1997 EPOC OS Releases 1–3. The Series 5 device becomes available, its was the first movement towards 32-bit Symbian.

In 1998, Symbian Ltd. Created.

1999 - EPOC Release 5. Series 5 devices are in production using ER5. Symbian OS v6.0 and v6.1 becomes the first 'open' Symbian OS phone

2003 Symbian OS v7.0 and v7.0s released

In 2004, Psion sells Symbian. The first for mobile phones using Symbian OS. Symbian OS v8.0 and v8.1. released. Symbian OS v9.0. fails and is taken out of prodution before hitting the market.